Integers
Integers are whole numbers that can be positive, negative, or zero. They do not include
fractions or decimals. The symbol “Z” means the set of the integers given.
- Example: Z={−3,−2,−1,0,1,2,3}
- Positive Integers=1,2,3
- Negative Integers=-1,-2,-3
- Zero (neither positive or negative)=0
- Absolute value: |(number)|
- The number can be either positive or negative.
- You don’t have to look at the positive or negative sign to find out the value; just look at
the number.
- Example: |-5|
- The value will be 5.
- Example: |5|
- The value will be 5.
Rules for Adding Integers:
Signs of Integers Operation to Use Answer Sign Example
Addition Positive (+) 4+3=7
Addition Negative (-) (-5)+(-3)=-8
Subtraction Use the sign of the 6+(-2)=4
integer with a bigger
absolute value.
Subtraction Use the sign of the (-9)+(4)=-5
integer with a bigger
absolute value.
Integers are whole numbers that can be positive, negative, or zero. They do not include
fractions or decimals. The symbol “Z” means the set of the integers given.
- Example: Z={−3,−2,−1,0,1,2,3}
- Positive Integers=1,2,3
- Negative Integers=-1,-2,-3
- Zero (neither positive or negative)=0
- Absolute value: |(number)|
- The number can be either positive or negative.
- You don’t have to look at the positive or negative sign to find out the value; just look at
the number.
- Example: |-5|
- The value will be 5.
- Example: |5|
- The value will be 5.
Rules for Adding Integers:
Signs of Integers Operation to Use Answer Sign Example
Addition Positive (+) 4+3=7
Addition Negative (-) (-5)+(-3)=-8
Subtraction Use the sign of the 6+(-2)=4
integer with a bigger
absolute value.
Subtraction Use the sign of the (-9)+(4)=-5
integer with a bigger
absolute value.
